Home / 8,919.59-13,380.27-3,298.74

Finding the Fourth Proportional to 8,919.59, 13,380.27 and 3,298.74

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Solution

The fourth proportional to 8,919.59, 13,380.27 and 3,298.74 is: 4,948.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,919.59 : 13,380.27 = 3,298.74 : x
  2. Step 2: Convert to fraction form
    8,919.59/13,380.27 = 3,298.74/x
  3. Step 3: Cross multiply
    8,919.59x = 13,380.27 × 3,298.74
  4. Step 4: Simplify right side
    8,919.59x = 44,138,025.50
  5. Step 5: Solve for x
    x = 44,138,025.50/8,919.59
  6. Step 6: Final answer
    x = 4,948.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.